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| author | David S. Miller <davem@davemloft.net> | 2008-06-14 05:52:39 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-06-14 05:52:39 +0200 |
| commit | 4ae127d1b6c71f9240dd4245f240e6dd8fc98014 (patch) | |
| tree | b7aa27b3e0c655f4613fe2146cb57d7f69e421f6 /arch/x86/kernel/process_32.c | |
| parent | udp: reorder udp_iter_state to remove padding on 64bit builds (diff) | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 (diff) | |
| download | linux-4ae127d1b6c71f9240dd4245f240e6dd8fc98014.tar.xz linux-4ae127d1b6c71f9240dd4245f240e6dd8fc98014.zip | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/smc911x.c
Diffstat (limited to 'arch/x86/kernel/process_32.c')
| -rw-r--r-- | arch/x86/kernel/process_32.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index f8476dfbb60d..6d5483356e74 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -649,8 +649,11 @@ struct task_struct * __switch_to(struct task_struct *prev_p, struct task_struct /* If the task has used fpu the last 5 timeslices, just do a full * restore of the math state immediately to avoid the trap; the * chances of needing FPU soon are obviously high now + * + * tsk_used_math() checks prevent calling math_state_restore(), + * which can sleep in the case of !tsk_used_math() */ - if (next_p->fpu_counter > 5) + if (tsk_used_math(next_p) && next_p->fpu_counter > 5) math_state_restore(); /* |